Air-pump attachment.



C. S. GARDNER.

AIR PUMP. ATTACHMENT. APPLICATION-FILED Juli Z| 19H 1,212,760. mmJnn..16,1917..

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C. S. GARDNER.

AIR PUMP ATTACHMENT.

APPLICATION FILED JUNE 28, 19l3. I 1,212,760. Patented Jan. 16,1917.

2 SHEETS-SHEET 2.

JL ll m: mall nun an. mum. wuunvanmf COE SMITH GARDNER, OF DE LAND,

AIR-PUMP ATTACHMENT.

Specification of Letters Iatent.

rnonrnA, ASSIGNOR or ONE-HALF 'ro enonen' 11.

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Patented Jan. 16, 1917.

Application filed June 28, 1913. Serial No. 776,331.

To all whom it may concern: 7 ,3

Be it known that 1, Con SMITH GARDNER, citizen of the United States,residing at De Land, in the countycof Volusia andState of Florida, haveinvented certain new and useful Improvements in Air-Pump Attachments, ofwhich the following is a specification.

This invention relates to an improved air pump of the rectilinearmanually operated type, and the primary object thereof is to providemeans for facilitating the downward or compression stroke of the pistonto force the air into a tire in connection with which pumps of thischaracter are commonly used.

Heretofore, during the inflation of tires, it has been impossible tocarry out the full downward or compressionstroke of manually operatedpumps owing to the fact that the air pressure within the tire ,oiferssufii; cient resistance to the pump piston to prevent a full strokethereof, thus rendering the desired full inflation of the tireimpossible. r

It is therefore an object of my invention to overcome the above andvarious other ob jectionable features and to provide an attachment or'device adapted to be employed in connection with an ordinary rectilinearmanually operated pump whereby the power of the downward stroke ismaterially increased, thereby permitting a full and complete stroke ofthe pump pistonv regardless of the air ressure within the tire, thisbe,- ing accomp ished by means ofa-plurality of specially arrangedlevers and other, elements adapted to. be disposed in such a'novelpeculiar manner as to substantially increase, and in fact double theleveragenecessary for the inflation of tires in the desired manner." a

The invention still further. resides injthe provision of :means adaptedto Joe operated by the pump'handlel toforce ithe piston downwardlywithin the cylinder provided therefor, thereby permitting afullcompression stroke during. the;application of the invention. I

The above and-additional objects are accomplished b'v sueh'means as areillustrated in their preferred embodiment in the accompanying drawings,described in the following s ecification and: then more partieu larlypointed out in the claims which .are

and

appended hereto and form a part of this application.

In describing my invention in detail reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a side elevation of an ordinary manually operated air pump with thedevice or attachment arranged thereupon; Fig. 2 is a similar viewillustrating the position of the several parts during the downwardstroke of the piston; Fig. 3 is a similar view illustrating theposition-of the several parts, the stroke nearing its completion; Fig. 4is a similar view illustrating the position of the several parts afterthe stroke has been completed; and Fig. 5 is a rear elevation ofthe'pump as illustrated inFig. l.

. Referring now to the drawings, the numeral. 1 designates, anordinaryrectilinear manually operated air pump comprisingthe usual cylinderQ,base 3 and piston rod 4:, the latter projecting from the exterior of thecylinder for the purpose of guiding the handle 5 which is. slidablyarranged thereupon. Pivotally secured upon each side of thehandle 5 is aconnecting lever 7 the op posite end of the lever being hingedlyconnectedas at 8 to a reciprocatorybell crank block 9, the latter beingpivotally secured as at 10 to'a sliding block 11 mounted upon avertically extending rod 12 disposed adj acent the cylinder 2 andextending in parallel spaced relation thereto. A stationary block 13 issecured to the piston rod 4 below the handle 5, the block havin rods 14depending from each side thereo the opposite ends of therods14 beingpivotally secured as at 15 to the reciprocatory blocks 9 so that thereciprocatory movement imparted to the said blocks will be in turntransmitted to the piston rod 4.

The block member 11 to which the bell crank blocks 9 are pivotallysecured is provided with a catch member 16 adapted to be normally forcedinto engagement with the rod 12 through the medium of a leaf spring 17carried: by the said block and engaging the said catch, this arrangementof the spring forcing the catch into a notch 18 provided' thereforwithin the rod 12 after the block members 9 have been slid until theblocks 11 engage an enlargement 19 formed at the. base of the rod 12;Any suitable spaced relation to the cylinder 2, the 6 p site end of thesaid rod from that, engagfid he.

by the bracket being fixedly secured to as 3 f: he pump.- 12 c ndle,raised to its uppermost position draws the bell crank blocks 9 to\vai:d" 'the tofi"df the cylinder 2, the said, blocks having a bar 21extending froin the to the anti t'hzerof to limit the upward movementthereof, fitter eng ing the reds '14 'and tannin tlie bonxfcting iv'ersTat antt an 0 me pf an we "The-ava r tang SH" aye-h center as is clearlyshown inFigl drawings it will"be-See1ithat"the downward movement of 'thehandl will ca'iiSe tlibldcks 9 to" slide vertically until the block 11"to which the said breaks are" connected engages the'emargeninvw of theguide rod"'1Ej iii which event a continued downward' movenient of i thehandle fi will cause the? Motifs 9 to swing "upon" the pivotal teammate*as is clearly shownin Fig. =3,'"s'iich swinging movement forcin'g'the'rods l i'to cdritii ni'e their downward stroke" until: the said blocks 9assume the position illustrated whereupon the bl ockfl fa" to" whichthe'h'biis 1 k areconnected-enga es the 'tpp'er "fiitrit-mity of-"tliecylinder 2 *threbyii6iilp full. "stroke of the eyliiidi' fpkt "theblocks aa're slid vertical-1 y upo he cylinder 12; until the -bloicklilengages "tli 't 19; anteater; is'f renew in -to are nowh re-predatethei erby inc a at thcpressere bjro'ufght tobear a e" th ifd catchthrough the "ifiediiim of the sp-rmg' Z; such eiigagement isrevefltinrevers -verticaT ihdve'lhefit 'o'f tliebldclt 11' anddocliin'g the said"block i'rhrridvable pen the road e. Ai-te1- t:attmatia11y16c n g' theblock 11 as above' ease ,ib pr "sure-dpbndhe handle will caase tne bleraiik b10cks 9"to swing outwaffidl' or mayhem the said' blocktlireby'iifa in are pistbn rdd 12*"to' which-the 'saidbloeks meme; dewaw' men;6% tile-weds 'mehiehe meet the==be1 l cylinder thereby perniittiiig 'tfiill strolie ofed; are eaiiaaaea' aewawara the arrange r 9Qnn h ionhwith the accompanying draw- 1 ,t l. t t ecatgh 1512, r L6 isau,matiqaigy al mea int'o of ang ia-am wi l the notch 18 provided thereforby the actjonof the spring 17 and bell crank blocks 9,; that theleverage or pulling power generated by the novel and peculiar arrangernent of the bell crank blocks and rods 1451s siifficient tWffirce. thepiston rod 14 downwardly until the block 13 engages the upper extremitof the "cylinder; "and "the piston da'rri'ect'" the said rod tem -la sits downward'trokei"and that the Moment the block 11 engages" th='*ea1ariemeat 19 of the guide rod 1 Q;tlihbell caaal 'bloclis begin to swingu'p'qn 'theii' 'fii'vot point ioeausing the said breaks-eta pun'uawfiw'ardiyupen the piston rod until the stroke thereof is completed}reductibn to pr'ati'cf"e"; I have found that thefo ofrii y 'invntiofi,illustrated in the drawings; 'andffefferrdtdin the above de- Set" tiofias thpreferred embodiment, is

arose efiici'nt practical; yetrealize eonditibnsconburfent with theadeptitn ofmy'nviae will necessarily I vary, I desire to emphasize thefact that various miner chaiiges irr' detaiils of construction, prop:tieii" a d' arrangement of "parts may bli fesoi tedfto,'tvhen'reqa'rred, without sacriacing aty beithtadvaawges of my"inven-Herc 'fisfiefiijed in the appended' claims; "'Hayingdi'lifi sfi illydescribed any" invention, whatddclaiiiiiis i'iw 'a'fid 'desii'e tosecure by Letters Pfitnt, is:-"'

1. The combination with a pump body and 'a i piston s'tri-ij'etl'ii'etherefor, means: for pistolrstructure"comprising a safil power'.increasing 'eleipent. ccmbinatiorlyw pump"body and. a

piston 'fstru re therefor, manualmeans for piston Structure "toward afinal p-lirn figfisitiii ,"sli'dablysnpported mecha'nis with. thep1stiin. "structure 'anii actuatefi by theppera'ting means tort;-creasing the manual thrust. applied by said me'ans 'us the pistofistructure approaches, a fiii1-="tiufnptnig 'p'oiti6n "31151cdthbinationi, e k-pump body, andta piston structure therefor, meansformoving si i-d strfittnre; teeny reciprocating} mechanisnrmovablwwith; saidxmeaalsifstop means ofl l i nfiifi fiiovem ntofeaidzhinechanismg and nie'ansconncti'ngtsaid mechanisrrrxwith saidfilttfirnentibliied :to --increasefthe .thlil St on teammate by a;continued movement of said means "-4. Incmnlfination, a pump body and aistom structure; therefor, means. for, moving said? street-Lure;mechanism movable bofiil-y "witlil "said i T h flilfi; guide means. forsaid; mechanism; Step" mcimfi, f9. lli ifil h movementorfrisaidamechanismft nd ineang 1'30 connecting said mechanism with saidfirst mentioned means to increase the thrust on said structure by acontinued movement of S id means. s

5. In combination, a pump body, and a piston structure therefor,operating means for said piston structure, mechanism movable bodilyaccording to the movement of said operating-means, guide means for saidmechanism, means for limiting themovement of the said mechanism as thepiston ment of said piston structure to increase the vstructureapproaches a final pumping positron, and means connecting said11180113111811 "with said operating means, said last men-e tioned meansadapted to actuate said mechanism by a continued movement of saidoperating means to increase the thrust on piston structure. a I

6. In COIIlbiIlfitlOIl, a pump body and a piston structure therefor,operatingf means for said structure, mechanism bodily movable accordingto the movement of said operating means, the length of stroke of saidmechanism being shorter than the stroke of said piston structure, guidemeans for said mechanism, and means connecting said operating means tosaid mechanism, the said last mentioned means adapted" to actuate thesaid .mechanism by a continued movement of the piston structure toincrease the thrust applied thereto.- a

7. In combination, a pump body, and a piston structure therefor,operating means for said piston structure, a bodily movable operatinglever,"said lever being movable according to the movement of said pistonstructure, means connecting said lever with said piston, meansconnecting said lever with said operating means, means for guiding saidlever, stop means to limit the bodily movement of said lever, the saidlever when stopped by said last mentioned means adapted to be actuatedby a continued movethrust applied thereto, as and for the purposeSetforth.

8. In combination with an a1r pump having a piston rod projecting fromone end thereof, a handle slidably mounted upon said rod, a guide barand lever means ca-rried by the said baradapted to be operated throughmovement of said handle to mcrease the thrust applied to said rod, asand for the purpose set forth.

9. In combination with an air pump having a piston rod projecting fromone end thereof, a handle slidably mounted upon said rod, a guide barrigidly secured to the said pump and extending parallel with thecylinder thereof, a block slidably mounted upon the said bar, and meansconnecting the said block to the said handle for imparting motionthereto, as and for the purpose set" forth.

10. In combination with an air pump having a piston rod projecting-fromas end thereof, a handle slidably mounted upon said rod, a guide barrigidly mounted adjacent the pump, a block slidably mounted upon thesaid rod, and'means including bell crank Iblocks'pivotally secured o thesaid sliding block and connected to the saidhandie for sliding the saidblock throughout the length of the bar, as andfor thepurpose setforthn v11. Incombination with an air pump having a piston rod projecting fromone end thereof, a handle slidably mounted upon said rod, a' guide bar,a block slidably "mountedupon the said bar, means 'connecting' the saidsliding blockto the said handle, and means connected to the piston rodthereof, a handle slidably mounted upon said rod, a guide bar, a blockslidably mounted u onthe said bar, means for looking thesai blockagainst verticalmovement upon the said rod, and means carried by -thepiston rod adapted to be connected to the said block and the said handlefor operating the piston according to the movement of the handle, asandfor the purpose set forth."

13. In combination with an air pump hav-' ing a piston rod projectingfrom oneend thereof, a handle slidably mounted upon said rod, a guiderod, a block slidably mounted upon'the saidrod, a lever pivotally'secured to "the said handle having the other end hingedly connected tothe said bell crank blocks, and means including rods connecting the saidbell crank blocks with the said piston rod for operating the latteraccording to the movement of the handle.

14. In combinationwith an air pump having a fpiston rod projecting fromone end thereo a handle slidably mounted up)on said rod, a verticallextending guidear for limiting the movement of the said block, bellcrank blocks pivotally secured to the said sliding block, the said bellcrank blocks being in turn connected to the said handle, rods connectingthe said bell crank blocks to ed upon the said guide bar, an enlargementlock mount- 5 adapted to be operated by the said handle, i

1 as and forthe purpose set forth.

12. In combination with an air pump hav a 1 fing a pistonrod projectingfrom one end the said piston rods, the said bell crank 110 arrangedadjacent t a said pump, a block slidably mounted upon the said rod,means 1 formed at mhe be'se 111i the said and 'for limiting the downwardmovement of the mid block, means for automatically :lookingthe saidblock against upward movement when in engagement with the saidenlargement, bell crank blookspivotelly secured .to "the said slidable:hlock, levers connecting the said ball crank blocks to the said handle,and

rods connecting the said hell crank blocks thence to the said piston rodfor operating the dotter by swinging the, hell crank bloc'ksmpon theirpivotal connection to the-said slidable block according to the operation-of the said handle, as and for the purpose set forflh.

16. In combination with an'airrpnmp having a iston rod projecting tramone :end

thereo, a handle slidehly monnted upon said rod, a guide bar carried bythe :said

pump adapted ftOrBXtGIld in pwrailel,,-speced relation thereto, avertically slidablehihlock carried by the seid guide her, an enlargementformed atthe base'of thesaid guide bar for limiting the=downiwardmovement-20f the said pump, a spring pressed ,rcatoli member carried bythe said-block adapted to engage a notch formed within .thes'said iberfor locking 'the said block'against upward move ment when in engagementwith :thezsuid enlargement, hell crank blocks ipivotmlly connected 'tothe said. slida'ble blocks, levers connecting the said bell crank blocksto the said handle, means for limitingthe {pivotal-"movement of thesaid; bell crank blocks, and

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#m'eana iluflildilig mods 'cconneeting the said :piston rod tto the heilorenk blocks 'ior operating :the said piston :rod and swinging the bellcrank blocks from their pivotal-coning 'to the operation of the saidhandle, as and for'the :purpooe'set .afiorth. 7

L7. iln'comhination wither! air pump hova rod projecting from :one end ahandle ioperahle npomssid rod, :1 her, motion transmitting means interipe d between said handle and therpiston IlOdeiO increase the thrustapplied through said handle :to the-mod as the latter reaches a ifinalpumping position.

nection with the said slidable blocks accord- B8. In combination with'a' pump body havinga piston rod projecting tram one end thereof, ahandle operable on said piston and independently thereof, a guide be-radjacent said pump body, lever mechanism hawing pivoted engagement withsaid pump rod nndismid hendlennd slidable and pivotedrengagement with:said guide bar donning a 111- crum for increasing the thrust on thepiston -rod, and means for limiting, at times, the

reverse movement of said fulcrum.

in testimony whereof I aifix my signature in presenceof two: witnesses.

60E SMITH GARDNER.

Witnesses n. H. em,

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